Abstract: Vehicle (2) refrigerant fluid (700) circuit (1001, 1002, 1003, 1004) comprising: a compressor (200) intended to raise the pressure of the refrigerant fluid (700), a condenser (300, 301), located downstream of the compressor (200) according to a circulating direction of the refrigerant fluid (700) in the circuit (1001, 1002, 1003, 1004), an expansion member (401, 402, 403, 404, 405), located downstream of the condenser (300, 301), which is intended to lower the pressure of the refrigerant fluid (700), an evaporator (600, 601), located downstream of the expansion member (401, 402, 403, 404, 405), characterized in that it comprises a heat exchanger (900) dedicated to cooling a charge port (12) located on the vehicle and/or the interconnect located on the vehicle (2) linking an electrical source and the battery (3) to be charged.